Function of r-RNA

Answer

### Step-by-Step Solution for the Function of r-RNA

1. **Definition of rRNA**:
- rRNA stands for ribosomal RNA, which is a type of ribonucleic acid. It is one of the three main types of RNA, alongside mRNA (messenger RNA) and tRNA (transfer RNA).

**Hint**: Remember that rRNA is a crucial component of ribosomes, the cellular machinery for protein synthesis.

2. **Role in Protein Synthesis**:
- The primary function of rRNA is to facilitate the process of protein synthesis. It plays a critical role in the formation of ribosomes, which are the sites where proteins are synthesized.

**Hint**: Think of rRNA as the structural and functional backbone of ribosomes.

3. **Interaction with mRNA**:
- rRNA works in conjunction with mRNA. While mRNA carries the genetic information from DNA to the ribosomes, rRNA helps to read this information and catalyze the assembly of amino acids into a polypeptide chain, ultimately forming proteins.

**Hint**: Visualize the ribosome as a factory where rRNA is the foreman guiding the assembly line of amino acids.

4. **Catalytic Function**:
- rRNA is not just a structural component; it also has catalytic properties. It catalyzes the formation of peptide bonds between amino acids, which is essential for building proteins.

**Hint**: Remember that rRNA has enzymatic functions, which is a unique feature among RNA types.

5. **Complex Structure**:
- The structure of rRNA is complex, consisting of various folds and shapes that allow it to perform its functions effectively. This complexity is essential for its interaction with both mRNA and tRNA during protein synthesis.

**Hint**: Consider how the intricate design of rRNA contributes to its ability to perform multiple roles in the ribosome.

### Summary
In summary, the function of rRNA is to assist in protein synthesis by forming the core of ribosomes, interacting with mRNA to read genetic information, and catalyzing the assembly of amino acids into proteins.